Chess is rich in meaning

Chess is a game sufficiently rich in meaning that it is easily capable of containing elements of both tragedy and comedy.

— Luke McShane

Threat and Execution

The threat is stronger than the execution

-- Nimzowitsch

What Goes into the Minds of Grandmasters?

A Grandmaster makes the best moves because they are based on what he wants the board to look like ten or twenty moves in the future. This doesn't require the calculation of countless twenty-move variations. He evaluates where his fortunes lie in the position and establishes objectives. Then he works out the step-by-step moves to accomplish those aims.

-- Garry Kasparov (on his book "How Life Imitates Chess: Making the Right Moves, from the Board to the Boardroom)